A new SAN volume has been presented and mounted on a server, but poor write performance is exhibited. Which of the following should be investigated to determine potential causes?

HBA persistent bindings relate to consistent LUN ID presentation across reboots, not directly to write performance.

Incorrect partition alignment can lead to unaligned I/O requests where a single logical block write from the operating system spans two physical blocks on the storage device. This results in two I/O operations instead of one, significantly degrading write performance. This misalignment often occurs if the partition starting offset is not a multiple of the underlying storage's physical sector size (e.g., 4KB sectors).

HBA topology configuration (e.g., fabric type, zoning) affects connectivity and LUN visibility, but not typically the specific write performance after a volume is already mounted and accessible.

MTU size for jumbo frames primarily impacts network performance for IP-based storage (like iSCSI or NFS over Ethernet), not typically the write performance within a Fibre Channel SAN where the question implies a 'SAN volume.' Alignment along switch boundaries is not a common concept in this context.